Oh Jack, you artful, artful dom, and oh Ianto, you mouthiest of subs (in all ways, until made speechless).

The thing that makes it all work for me is that Thomas gets it, and is both respectful and kind -- he treats his admission to their private headspace as the privilege it is. Very clever, modeling for the reader like that.

And one more typo (I sympathize about the Blackberry): as they feed Thomas cock into him -- Thomas could use an apostrophe.